mirror of
git://sourceware.org/git/lvm2.git
synced 2024-12-22 17:35:59 +03:00
25b733809a
Lots of changes/very little testing so far => there'll be bugs!
Use 'vgcreate -M text' to create a volume group with its metadata stored
in text files. Text format metadata changes should be reasonably atomic,
with a (basic) automatic recovery mechanism if the system crashes while a
change is in progress.
Add a metadata section to lvm.conf to specify multiple directories if
you want (recommended) to keep multiple copies of the metadata (eg on
different filesystems).
e.g. metadata {
dirs = ["/etc/lvm/metadata1","/usr/local/lvm/metadata2"]
}
Plenty of refinements still in the pipeline.
82 lines
2.0 KiB
C
82 lines
2.0 KiB
C
/*
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* Copyright (C) 2001 Sistina Software
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*
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* LVM is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* LVM is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with LVM; see the file COPYING. If not, write to
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* the Free Software Foundation, 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*
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*/
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#include "tools.h"
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static int vgexport_single(struct cmd_context *cmd, const char *vg_name);
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int vgexport(struct cmd_context *cmd, int argc, char **argv)
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{
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if (!argc && !arg_count(cmd, all_ARG)) {
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log_error("Please supply volume groups or use -a for all.");
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return ECMD_FAILED;
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}
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if (argc && arg_count(cmd, all_ARG)) {
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log_error("No arguments permitted when using -a for all.");
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return ECMD_FAILED;
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}
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return process_each_vg(cmd, argc, argv, LCK_VG_READ, &vgexport_single);
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}
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static int vgexport_single(struct cmd_context *cmd, const char *vg_name)
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{
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struct volume_group *vg;
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if (!(vg = vg_read(cmd, vg_name))) {
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log_error("Unable to find volume group \"%s\"", vg_name);
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goto error;
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}
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if (vg->status & EXPORTED_VG) {
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log_error("Volume group \"%s\" is already exported", vg_name);
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goto error;
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}
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if (!(vg->status & LVM_WRITE)) {
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log_error("Volume group \"%s\" is read-only", vg_name);
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goto error;
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}
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if (lvs_in_vg_activated(vg)) {
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log_error("Volume group \"%s\" has active logical volumes",
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vg_name);
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goto error;
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}
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if (!archive(vg))
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goto error;
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vg->status |= EXPORTED_VG;
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if (!vg_write(vg))
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goto error;
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backup(vg);
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log_print("Volume group \"%s\" successfully exported", vg->name);
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return 0;
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error:
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return ECMD_FAILED;
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}
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